The amortized cost and fair value of securities are summarized as follows:

All mortgage-backed securities are with government sponsored enterprises (GSEs) such as Federal National Mortgage Association, Government National Mortgage Association, Federal Home Loan Bank, and Federal Home Loan Mortgage Corporation.

At year-end 2011 and 2010, there were no holdings of securities of any issuer, other than the U.S. Government and its agencies, in an amount greater than 10% of stockholders’ equity.

The amortized cost and fair value of securities as of December 31, 2011 by contractual maturity are shown below. Actual maturities may differ from contractual maturities because the issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

The following table shows the gross unrealized losses and fair value of securities, aggregated by category and length of time that securities have been in a continuous unrealized loss position at December 31, 2011 and 2010. In estimating other-than-temporary impairment losses, management considers, among other things, the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer and the intent and ability of the Company to hold the security for a period of time sufficient to allow for any anticipated recovery in fair value. The unrealized losses shown in the following table are primarily due to increases in market rates over the yields available at the time of purchase of the underlying securities and not credit quality. Because the Company does not intend to sell these securities and it is more likely than not that the Company will not be required to sell the securities before recovery of their amortized cost basis, which may be maturity, the Company does not consider these securities to be other-than-temporarily impaired at December 31, 2011. There were no other-than-temporary impairments for the years ended December 31, 2011, 2010 and 2009.

At December 31, 2011, none of the Company’s 518 debt securities were in an unrealized loss position for more than 12 months.

During 2011, 16 government agency bonds with an amortized cost of $63,156,000 and 20 government agency sponsored mortgage-backed securities with an amortized cost of $29,852,000 were bought. Nine US Treasury notes, six government agency bonds and five government agency sponsored mortgage-backed securities were sold with an amortized cost of $56,075,000 and a net gain on sale in the amount of $992,000. During 2010, nine government agency bonds with an amortized cost of $31,189,000 and one corporate bond with an amortized cost of $1,000,000 were sold with total recognized gain on sale of $108,000. During 2009, two corporate bonds with an amortized cost of $2,040,000 and three government agency bonds with an amortized cost of $30,334,000 were sold with total recognized gain on sale of $193,000. There were $326,000 in losses on sales of securities during 2011, and no losses on the sale of securities during 2010 or 2009.

The carrying value of investment securities pledged to secure public funds on deposits and for other purposes as required by law as of December 31, 2011 and 2010 was $197,897,000 and $111,347,000, respectively. This increase in the amount of securities pledged was primarily the result of the termination of the FDIC’s Temporary Account Guarantee Program for fully insuring interest-bearing accounts at the end of 2010.

Restricted equity securities include (1) a restricted investment in Federal Home Loan Bank of Atlanta stock for membership requirement and to secure available lines of credit, and (2) an investment in First National Bankers Bank stock. The amount of investment in the Federal Home Loan Bank of Atlanta stock was $3,251,000 and $3,260,000 at December 31, 2011 and 2010, respectively. The amount of investment in the First National Bankers Bank stock was $250,000 at December 31, 2011 and 2010.